Covered pet bed



FIG. 1 is a perspective view taken from the top, front and right side of a covered pet bed showing my new design;

FIG. 2 is a perspective view taken from the top, rear and left side thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a covered pet bed, as shown and described. 